Coupled Model Exercise Exercise 3

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Coupled Model ExerciseExercise 3
George H. Leavesley, Research Hydrologist, USGS,
Denver, CO
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TOOL BOX MODELING VIEWS

• Research Model Developer Complex Detail
• Application Model Developer
• Model User
• Resource Manager
• Policy Maker Condensed
  Analysis

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LEVELS OF MODULAR DESIGN
Single Purpose

• PROCESS
• MODEL
• FULLY COUPLED MODELS
• LOOSELY COUPLED MODELS
• RESOURCE MANAGEMENT DECISION SUPPORT SYSTEMS
• ANALYSIS AND SUPPORT TOOLS

Multi-objective, Complex
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CRITERIA AND RULES FOR GOOD MODULE DESIGN
Modules should

• relate directly to real world components or
  processes
• have input and output variables that are
  measurable values
• communicate solely via these input and output
  variables

Reynolds J.F., and Acock, B., 1997, Modularity
and genericness in plant and ecosystem models
Ecological Modeling 94, p 7-16
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Model Building Tool - XMBUILD
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LOOSELEY COUPLED MODELS
MMS Model
Off-the-shelf Model
Database
Data Management Interface (DMI)
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LOOSELEY COUPLED MODELS
PRMS
Channel Geometry Analysis Program (CGAP)
Hydraulics Model
Habitat Suitability Index
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OBJECT USER INTEFACE (OUI)
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Other Model Integration Approaches

• U.S.
• BASINS (EPA)
• FRAMES (DOE, NRC, DOD, EPA)
• DIAS (DOE)
• XMS (WMS, GMS, SMS, - EMS Inc.)
• OMS (USDA)
• International
• HarmonIT (Europe)
• Catchment Modeling Toolkit (Australia)

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Exercise 3 Problems

• 1.0 MMS_PET
• Process comparison
• 2.0 MMS PRMS Daily Mode
• Watershed model evaluation
• 3.0 MMS PRMS-HIS
• Coupled watershed-hydraulics-habitat model

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Potential Evapotranspiration (potet)
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PRMS
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HRUs
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LOOSELEY COUPLED MODELS
PRMS
Channel Geometry Analysis Program (CGAP)
Hydraulics Model
Habitat Suitability Index
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Channel Cross-section
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Channel Characteristics
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Basic Channel Hydraulics
Q AV
V 1.486/n R2/3 S1/2
n is Mannings n R is hydraulic radius
S is channel slope
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Habitat Suitability Index Velocity
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Habitat Suitability Index - Depth
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Weighted Usable Area (WSU)
WUA S ( velocity_hsi
depth_hsi x-sect_width 100.)
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MORE INFORMATION

• http//wwwbrr.cr.usgs.gov/mms
• http//wwwbrr.cr.usgs.gov/weasel
• http//wwwbrr.cr.usgs.gov/warsmp
• http//oms.ars.usda.gov
• http//www.iscmem.org